Lakes

Simulate simulate.lakes

Fills hollows with water up to the level where each would overflow. Height is the lake bed (flattened by sediment), Water surface the lake level (the ground elsewhere), Lakes is white on water and Shore along the waterline.

Output with default settings, rendered by LibreTerrain.

Inputs

Port	Type
Terrain	Heightfield

Outputs

Port	Type
Height	Heightfield
Water surface	Heightfield
Lakes	Mask
Shore	Mask

Settings

Setting	Default	Range / options	Description
Min depth	1 m	0 to 1,000 m	Hollows shallower than this at their deepest point stay dry.
Min area	5,000 m²	0 to 1,000,000,000 m²	Lakes smaller than this stay dry, so puddles don't clutter the map.
Sediment infill	0.3	0 to 1	Share of each lake's depth filled with sediment, giving it a flat floor. 0 keeps the original bed; 1 fills the lake to its surface.
Shore width	30 m	0 to 10,000 m	Width of the Shore mask on each side of the waterline, in metres.
Detail size	8 m	1 to 1,000 m	Cell size water is routed at, in metres: about the width of the smallest streams. Smaller is slower. The result is the same at any preview or build resolution.

See also

Hydraulic Erosion · Rivers · Sea · Snow · Thermal Erosion